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gerrit.openbmc.org / openbmc / phosphor-power / 5ea8b552fabe9bebb873307a4ab570a7cec8d9fb
commit5ea8b552fabe9bebb873307a4ab570a7cec8d9fb[log] [tgz]
authorGunnar Mills <gmills@us.ibm.com>Thu Oct 17 12:12:31 2019 -0500
committerShawn McCarney <shawnmm@us.ibm.com>Thu Oct 31 16:06:20 2019 +0000
tree2293c43b42c0aa43b05f9366f2c05e8ca1b0062c
parentad8d4542729d8ccbc3127a5474fb4736c3eb9fde [diff]
Update sensor-architecture.md link

sensor-architecture.md is moving under architecture/ as part of
https://gerrit.openbmc-project.xyz/c/openbmc/docs/+/26251/

26251 should merge before this is merged.

Change-Id: I0e2b6cd45642c12ffb389be830cf89ae552d1ebd
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
1 file changed
tree: 2293c43b42c0aa43b05f9366f2c05e8ca1b0062c
  1. example/
  2. org/
  3. phosphor-regulators/
  4. power-sequencer/
  5. power-supply/
  6. services/
  7. test/
  8. tools/
  9. .clang-format
  10. .gitignore
  11. argument.hpp
  12. device.hpp
  13. device_monitor.hpp
  14. elog-errors.hpp
  15. file.hpp
  16. gpio.cpp
  17. gpio.hpp
  18. LICENSE
  19. MAINTAINERS
  20. meson.build
  21. meson_options.txt
  22. names_values.hpp
  23. pmbus.cpp
  24. pmbus.hpp
  25. README.md
  26. utility.cpp
  27. utility.hpp
README.md

Code for detecting and analyzing power faults on Witherspoon.

To Build

To build this package, do the following steps:

    1. meson build
    2. ninja -C build

To clean the repository again run `rm -rf build`.

Power Supply Monitor and Util JSON config

Several applications in this repository require a PSU JSON config to run. The JSON config file provides information for:

  • Where to access the pmbus attributes
  • Which attribute file in pmbus maps to which property and interface in D-Bus
  • Which kernel device directory is used on which PSU

There is an example psu.json to describe the necessary configurations.

  • inventoryPMBusAccessType defines the pmbus access type, which tells the service which sysfs type to use to read the attributes. The possible values are:
    • Base: The base dir, e.g. /sys/bus/i2c/devices/3-0069/
    • Hwmon: The hwmon dir, e.g. /sys/bus/i2c/devices/3-0069/hwmon/hwmonX/
    • Debug: The pmbus debug dir, e.g. /sys/kernel/debug/pmbus/hwmonX/
    • DeviceDebug: The device debug dir, e.g. '/sys/kernel/debug/./`
    • HwmonDeviceDebug: The hwmon device debug dir, e.g. /sys/kernel/debug/pmbus/hwmonX/cffps1/
  • fruConfigs defines the mapping between the attribute file and the FRU inventory interface and property. The configuration example below indicates that the service will read part_number attribute file from a directory specified by the above pmbus access type, and assign to PartNumber property in xyz.openbmc_project.Inventory.Decorator.Asset interface.
      "fruConfigs": [
    {
      "propertyName": "PartNumber",
      "fileName": "part_number",
      "interface": "xyz.openbmc_project.Inventory.Decorator.Asset"
    }
  ]
  • psuDevices defines the kernel device dir for each PSU in inventory. The configuration example below indicates that powersupply0's device is located in /sys/bus/i2c/devices/3-0069.
      "psuDevices": {
    "/xyz/openbmc_project/inventory/system/chassis/motherboard/powersupply0" : "/sys/bus/i2c/devices/3-0069",
  }